FreeSurfer Tutorial: Useful recon-all flags.

The following flags can be used in conjunction with individual steps or the entire process:

recon-all flag

Used with step

Input

Command Line

Output

Description

-usecontrolpoints

-normalization

nu.mgz

["mri_normalize"] -f $SUBJECTS_DIR/subjid/tmp/control.dat nu.mgz T1.mgz

T1.mgz

uses control points, saved to tmp/control.dat to modify the normalization

-keepwmedits

-segmentation

brain.mgz

["mri_segment"] -keep brain.mgz wm.mgz

wm.mgz

preserves any previous edits to wm volume

-cc-xyz <X Y Z>

-fill

wm.mgz

["mri_fill"] -a ../scripts/ponscc.cut.log -C X Y Z -xform transforms/talairach.xfm wm.mgz filled.mgz

filled.mgz

manually sets the corpus callosum seed point

-pons-xyz <X Y Z>

-fill

wm.mgz

["mri_fill"] -a ../scripts/ponscc.cut.log -P X Y Z -xform transforms/talairach.xfm wm.mgz filled.mgz

filled.mgz

manually sets the pons seed point

-rh-xyz <X Y Z>

-fill

wm.mgz

["mri_fill"] -a ../scripts/ponscc.cut.log -rh X Y Z -xform transforms/talairach.xfm wm.mgz filled.mgz

filled.mgz

manually sets the right hemisphere seed point

-lh-xyz <X Y Z>

-fill

wm.mgz

["mri_fill"] -a ../scripts/ponscc.cut.log -lh X Y Z -xform transforms/talairach.xfm wm.mgz filled.mgz

filled.mgz

manually sets the left hemisphere seed point

-old-atlas

-rerun

The following flags can be used after certain manual intervention to regenerate accurate volumes and surfaces:

recon-all step

Individual Flag

Input

Command Line

Output

["recon-all"] -autorecon2-cp -subjid subj (use this after setting control points. This flag will preserve your wm.mgz edits and remake all necessary volumes and surfaces)

-normalization2

brain.mgz

["mri_normalize"] -f $SUBJECTS_DIR/subjid/tmp/control.dat -mask brain.mgz nu.mgz T1.mgz

T1.mgz

nu.mgz

T1.mgz

["mri_mask"] T1.mgz brain.mgz brain.mgz

brain.mgz

brain.mgz

-segmentation

brain.mgz

["mri_segment"] -keep brain.mgz wm.mgz

wm.mgz

-edit_wm_with_aseg

wm.mgz

["mri_edit_wm_with_aseg"] wm.mgz aseg.mgz wm.mgz

wm.mgz

aseg.mgz

-fill

wm.mgz

["mri_fill"] -a ../scripts/ponscc.cut.log -xform transforms/talairach.xfm -segmentation aseg.mgz wm.mgz filled.mgz

filled.mgz

aseg.mgz

../scripts/ponscc.cut.log

-tessellate

filled.mgz

["mri_tessellate"] filled.mgz 255 ../surf/lh.orig

lh.orig

["mri_tessellate"] filled.mgz 128 ../surf/rh.orig

rh.orig

-smooth1

?h.orig

["mris_smooth"] ?h.orig ?h.smoothwm

?h.smoothwm

-inflate1

?h.smoothwm

["mris_inflate"] ?h.smoothwm ?h.inflated

?h.inflated

-qsphere

?h.inflated

["mris_sphere"] -w 0 -inflate -in 200 -q ?h.inflated ?h.qsphere

?h.qsphere

-fix

?h.qsphere

["mris_fix_topology"] subj ?h

?h.orig

-euler

?h.orig

["mris_euler_number"] ?h.orig

?h.orig.euler

-smooth2

?h.orig

["mris_smooth"] ?h.orig ?h.smoothwm

?h.smoothwm

-inflate2

?h.smoothwm

["mris_inflate"] ?h.smoothwm ?h.inflated

?h.inflated

-finalsurfs

brain.mgz

["mris_make_surfaces"] -w 0 subj ?h

?h.white

?h.orig

?h.pial

?h.thickness

-cortribbon

orig.mgz

["mri_surf2vol"] --mkmask --hemi ?h --fillribbon --template orig.mgz --volregidentity subj --outvol ?h.ribbon.mgz

?h.ribbon.mgz

?h.white

?h.pial

recon-all step

Individual Flag

Input

Command Line

Output

["recon-all"] -autorecon2-wm -subjid subj (use this after doing manual wm edits. This flag will regenerate all necessary volumes and surfaces)

-fill

wm.mgz

["mri_fill"] -a ../scripts/ponscc.cut.log -xform transforms/talairach.xfm -segmentation aseg.mgz wm.mgz filled.mgz

filled.mgz

aseg.mgz

../scripts/ponscc.cut.log

-tessellate

filled.mgz

["mri_tessellate"] filled.mgz 255 ../surf/lh.orig

lh.orig

["mri_tessellate"] filled.mgz 128 ../surf/rh.orig

rh.orig

-smooth1

?h.orig

["mris_smooth"] ?h.orig ?h.smoothwm

?h.smoothwm

-inflate1

?h.smoothwm

["mris_inflate"] ?h.smoothwm ?h.inflated

?h.inflated

-qsphere

?h.inflated

["mris_sphere"] -w 0 -inflate -in 200 -q ?h.inflated ?h.qsphere

?h.qsphere

-fix

?h.qsphere

["mris_fix_topology"] subj ?h

?h.orig

-euler

?h.orig

["mris_euler_number"] ?h.orig

?h.orig.euler

-smooth2

?h.orig

["mris_smooth"] ?h.orig ?h.smoothwm

?h.smoothwm

-inflate2

?h.smoothwm

["mris_inflate"] ?h.smoothwm ?h.inflated

?h.inflated

-finalsurfs

brain.mgz

["mris_make_surfaces"] -w 0 subj ?h

?h.white

?h.orig

?h.pial

?h.thickness

-cortribbon

orig.mgz

["mri_surf2vol"] --mkmask --hemi ?h --fillribbon --template orig.mgz --volregidentity subj --outvol ?h.ribbon.mgz

?h.ribbon.mgz

?h.white

?h.pial

recon-all step

Individual Flag

Input

Command Line

Output

["recon-all"] -autorecon2-pial -subjid subj (use this after editing brain.mgz to alter pial surface. This flag will regenerate all final surfaces)

-finalsurfs

brain.mgz

["mris_make_surfaces"] -w 0 subj ?h

?h.white

?h.orig

?h.pial

?h.thickness

-cortribbon

orig.mgz

["mri_surf2vol"] --mkmask --hemi ?h --fillribbon --template orig.mgz --volregidentity subj --outvol ?h.ribbon.mgz

?h.ribbon.mgz

?h.white

?h.pial